DS1087LU-255+T

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The DS1087LU-255+T is a highly accurate low-power, voltage-controlled oscillator (VCO) designed to enable sub-microsecond resolution timekeeping, jitter reduction and frequency synthesis applications. The device operates over a temperature range of –40 to 85°C and is offered in a temperature-compensated trimming mechanism operating over a frequency range of 5.5 to 16.5 MHz. Built to be a highly reliable VCO, the device can be used across a variety of applications, such as time-based applications that require precise frequency control, frequency synthesis applications and pulse width modulation (PWM) applications.

The DS1087LU-255+T uses the addition of high-flexibility, low-power VCOs such as the DS1087LU-255+T to maximize design efficiency and reduce complexity. The DS1087LU-255+T can be used in several applications, including telecom, industrial, and aerospace applications where amplifier stability and digital clock generation over a long period of time is needed. In digital clock applications, the frequency is generated through voltage-controlled oscillators (VCO) and is regulated by precision PLL loops. The signal is then divided down to lower frequency clocks, digital/analog signal converters, and signal processors.

The architecture of the DS1087LU-255+T supports a wide tuning range and low phase noise. The VCO operates in a range of 5.5 MHz to 16.5 MHz, with a range of 16.5 to 21.5 MHz available with the trim option. Furthermore, the VCO is augmented with a ratio frequency dividers, offsetting and mixing functions. As such, the device operates by integrating the VCO, offer a high bandwidth as well as variable gain setting, filter/gain controls and other precision functions.

The DS1087LU-255+T provides an oscillator output that is ideally tuned for digital applications by utilizing a digital temperature compensation characteristic and an on-chip delay line consisting of multiple taps with user-selectable delay values. This allows for improved signal integrity and stability in the system, ensuring reliable and accurate operation. Furthermore, the device also integrates a self-calibrations feature that can be enabled to improve on-chip performance. The self-calibration feature allows for high-accuracy tuning of the device over its operating temperature range.

The DS1087LU-255+T has a wide range of applications, including high speed data convertors, digital-to-analog converters, and microprocessors. It is highly suitable for high speed, low power applications, such as personal computers, communication systems, navigation systems, and motion-control systems. Additionally, the DS1087LU-255+T can also be used in Wi-Fi, CDMA, and PDH/SDH conveyors, lower-order word syncs, entertainment systems, and various test and measurement applications.

The DS1087LU-255+T also has improved frequency accuracy and stability, due to its integrated temperature compensation feature. The temperature compensation significantly reduces the drift in the frequency over varying temperatures. This ensures that the device maintains extremely high accuracy and reliability over the full range of operating temperatures for both the frequency and timing parameters. The device also features a programmable 16-bit-wide digital shift register (SR). This allows for the adjustment of the frequency output to match a precise rate, preventing errors in the frequency output.

The device is simple and easy to use, with a low-power consumptions, thanks to its voltage-controlled (VC) oscillator-based architecture. The VC output is fedback to the input via a proportional-integral-differential (PID) loop, thereby providing precise frequency control and extremely low-noise operation. Furthermore, the device is also compatible with very small board areas, with a 52-pin DIP output.

The DS1087LU-255+T is an extremely versatile VCO that provides highly precise frequency control and accuracy, making it ideal for a wide range of applications. Its advanced features make it possible to meet complicated specifications over the full range of operating temperatures. As such, it is the perfect choice for demanding embedded applications where high accuracy and reliability of the frequency and timing parameters is required.

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